package com.example.demo.mapper;

import java.util.List;

import org.apache.ibatis.annotations.Mapper;

import com.example.demo.pojo.Song;



@Mapper//使用@Mapper注解，表示这是操作数据库的mapper，SpringBoot自动扫描
public interface SongMapper {

	List<Song> getSongList();

	void updateSong(Song song);



}
